Wittmann, I; Schierling, A; Dettner, K; Göhl, M; Schmidt, J; Seifert, K: Detection of a new Piperideine Alkaloid in the Pygidial Glands of Some Stenus Beetles, Chemistry and Biodiversity, 12(9), 1422-1434 (2015)
Abstract:

Rove beetles of the genus Stenus produce and store bioactive alkaloids like stenusine (3), 3-(2-
methylbut-1-enyl)pyridine (4), and cicindeloine (5) in their pygidial glands to protect themselves from
predation and microorganismic infestation.
The biosynthesis of stenusine (3), 3-(2-methylbut-1-enyl)pyridine (4), and cicindeloine (5) was previously
investigated in Stenus bimaculatus, Stenus similis, and Stenus solutus, respectively. The piperideine
alkaloid cicindeloine (5) occurs also as a major compound in the pygidial gland secretion of Stenus
cicindeloides. The three metabolites follow the same biosynthetic pathway, where the N-heterocyclic ring
is derived from l-lysine and the side chain from l-isoleucine. The different alkaloids are finally obtained
by few modifications of shared precursor molecules, such as 2,3,4,5-tetrahydro-5-(2-methylbutylidene)-
pyridine (1). This piperideine alkaloid was synthesized and detected by GC/MS and GC at a chiral phase
in the pygidial glands of Stenus similis, Stenus tarsalis, and Stenus cicindeloides.

Zu dieser Publikation gibt es weitere Dateien zum Download

Passwort
Aktuelle Termine
Fr. 19.10.2018 aktuell
Forum Waldkontroversen: Wälder im Klimawandel
So. 21.10.2018
Führung: Der ÖBG zum Kennenlernen: Allgemeine Gartenführung
BayCEER-Kolloquium:
Do. 08.11.2018
Exploring groundwater-surface water interactions: from mountains to the Sea.
Do. 22.11.2018
Disequilibrium conditions and scale dependency in ecosystems
Do. 29.11.2018
Novel sulfur-cycling microbes within microbial dark matter. Insights from freshwater wetlands.
Wetter Versuchsflächen
Luftdruck (356m): 982.5 hPa
Lufttemperatur: 4.3 °C
Niederschlag: 0.0 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 17m): 4.3 km/h
Wind (Max.): 6.8 km/h
Windrichtung: SO

...mehr
Globalstrahlung: 2 W/m²
Lufttemperatur: 8.3 °C
Niederschlag: 0.1 mm/24h
Sonnenschein: <1 h/d
Wind (Höhe 32m): 1.5 km/h
Wind (Max.): 7.4 km/h

...mehr
Diese Webseite verwendet Cookies. weitere Informationen